ม.4 ความสัมพันธ์และฟังก์ชัน ทดสอบท้ายบทชุดที่2

• D_r1 = {-5, -3, 0, 1, 3}

• D_r1 = {2, 0, 2, 1, -2}

• R_r1 = {-5, -3, 0, 1, 3}

• R_r1 = {-2, 0, , 1, 2}

• D_r2 = Z

• D_r2 = {-1, 0, 1}

• R_r2 = Z

• R_r2 = {-1, 0, 1}

• D_r3 = {-1, 1}

• D_r3 = Z

• R_r3 = {-1, 1}

• R_r3 = Z

• D_r4 = R

• D_r4 = Z

• D_r4 = { }

• R_r4 = R

• R_r4 = Z

• R_r4 = { }

• D_r5 = R

• D_r5 = Z

• D_r5 = {-3, 0, 3}

• R_r5 = R

• R_r5 = Z